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Aerial view of an aeration basin wastewater treatment plant — Critical GREEN Pakistan
Environmental Engineering · Wastewater Treatment · Pakistan

Engineered Wastewater Treatment for Industry & Communities

Biological and nature-based treatment solutions, from ETP and STP design through technology selection, supply and commissioning.

UASB & Anaerobic Treatment Constructed Wetlands ETP & STP Engineering
25+
Projects Delivered
21
Treatment Products
10+
Years Experience
5+
Regions Served
The Challenge

Industrial Discharge is Pakistan's Fastest-Growing Environmental Problem

Industries across Pakistan face mounting EPA pressure, NEQS enforcement and community expectations. Untreated effluent is costing businesses penalties, shutdowns and reputational damage.

Critical GREEN designs treatment systems that achieve NEQS compliance, protect EPA licences, and reduce operational risk — for sugar mills, textile units, food processors, housing societies and municipalities.

Request Free Assessment
Wastewater treatment technology — Critical GREEN Pakistan
80%
of Pakistan's industrial wastewater is discharged untreated (PCRWR)
NEQS
National standards enforced by provincial EPAs — non-compliance risks closure
48hr
Critical GREEN's typical turnaround for a free preliminary technical proposal
What We Do

Full-Cycle Environmental Engineering

From feasibility and design through supply, construction, commissioning and operations — complete wastewater treatment solutions built for Pakistan's regulatory environment.

UASB anaerobic treatment

Anaerobic Treatment Systems

UASB, IC Reactor and ABR systems for high-strength industrial wastewater. COD removal 60–80% with biogas energy recovery. For sugar mills, distilleries and food processing.

SBR aerobic treatment

Aerobic Biological Treatment

SBR, MBR and BAF systems for biological COD/BOD removal. MBR produces TSS <5 mg/L suitable for effluent reuse. For municipal, pharmaceutical and food applications.

CAV-DAF flotation system

Flotation & Primary Treatment

CAV-DAF, DAF and SAF systems for TSS, fats, oils and grease removal. Essential pre-treatment for textile, edible oil, food processing and car wash effluent.

Constructed wetlands nature-based

Constructed Wetlands

HSSF, VSSF, FWS and FTW nature-based systems for sustainable, low-energy treatment. Ideal for housing societies, sugar mill polishing and municipal applications.

Environmental services IEE EIA Pakistan

Environmental Services

IEE, EIA, EMS, Environmental Audits, SEA and water quality testing. Full regulatory approval support from initial assessment to EPA submission and compliance monitoring.

CG ERP Enviro App software

CG Software Solutions

CG ERP and CG Enviro App — enterprise software built by Critical GREEN for environmental firms. Project management, NEQS compliance tracking, environmental monitoring.

Industries Served

Wastewater Treatment Across Every Sector

Different industries produce different wastewater. We engineer the right system for each — from high-strength distillery effluent to domestic sewage from housing societies.

All Industries →
Delivered Projects

25+ Projects Across Pakistan

Industrial ETPs, municipal STPs, housing society sewage systems, and community WASH interventions — Critical GREEN has delivered across Punjab, Sindh, KPK, Balochistan and Azad Jammu & Kashmir.

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Sugar mill ETP Pakistan — Critical GREEN
Sugar & Distillery UASB Punjab

Sugar Mill ETP — Punjab

2,500 m³/day UASB reactor with biogas recovery for high-strength distillery effluent. Full NEQS compliance achieved.

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Why Critical GREEN

Built for Pakistan's Environmental Engineering Market

Constructed wetlands Pakistan

Technology & Nature-Based Solutions

UASB to constructed wetlands — we select the right technology for your effluent, budget and site.

NEQS compliance Pakistan ETP

NEQS & EPA Compliance

All systems designed to meet NEQS standards. We handle EPA approval documentation and monitoring.

Pakistan-designed ETP engineering

Pakistan-First Design

Designed for Pakistani industrial flows, water characteristics, climate and EPA regulatory frameworks.

Community & Development

Community-Scale WASH Projects

Beyond industrial clients, Critical GREEN has delivered community-based WASH and environmental interventions across Pakistan — household-level constructed wetlands, decentralised sanitation and nature-based solutions through development-sector programmes.

14 Community Projects RusFAD / UNICEF Plan International UNDP
View Community Projects
Household constructed wetlands Beer Pani AJK — Critical GREEN
Featured · AJK
40 Household Constructed Wetlands
Village Beer Pani, District Bagh
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Ready to Solve Your Wastewater Challenge?

Tell us your industry, approximate daily flow and location. We will prepare a free preliminary technical proposal within 48 hours.

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